<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>

</head>
<body>
<div id="app">
     表单 <input type="text" v-model="message">
     文本域<textarea v-model="message"></textarea>
    {{message}}<br>
    表单的选择
         性别<input type="radio" name="gender"v-model="gender" value="男">男
         性别<input type="radio" name="gender"v-model="gender" value="女">女
         选择了--》{{gender}}
    <br>
    表单的下拉
       下拉框
        <select v-model="selected">
            <option value="" selected>请选择</option>
            <option>A</option>
            <option>B</option>
            <option>C</option>
            <option>D</option>
        </select>
        下拉了——》{{selected}}
</div>
<script>
    var vm=new Vue({
        el: "#app",
        data: {
            message: "",
            gender: "",
            selected: ""
        }
    });
</script>
</body>
</html>